基于均衡凝固理论设计球墨铸铁件冒口

Design Feeder for Ductile Iron Castings Based on Proportional Solidification Theory

介绍均衡凝固的基本原理,叙述铸件结构、冒口位置和冷铁对补缩的影响。结合铸件实例,说明合理设计冒口和利用冷铁使球铁铸件实现均衡凝固,防止缩孔、缩松的工艺方法。

The basic principle of the proportional solidification theory was introduced, and the influences of casting construction, feeder position and chill on feeding effect was described. A ductile iron casting was taken as an exaple to show how should properly design feeder and utilize chills to realize proportional solidification and prevent shrinkage defect.